Remote control for rearview mirror



ay 8, 1965 E. B. JACOBSON 3,183,736

REMOTE CONTROL FOR REARVIEW MIRROR Filed April 25, 1962 IN VEN TOR. Fr.E... [ZA m/ 45? /9 BY /6 (/4005504 H E W United States Patent 03,183,736 REMOTE CONTROL FOR REARVIEW MGR Edwin B. Jacobson, GrandRapids, Mich, assignor to Fervis Corporation, Grandville, Mich, acorporation of Michigan Filed Apr. 23, 1962, Ser. No. 189,352 13 Claims.(Cl. 74-501) The present invention is directed to a compression typeremote control actuation system for rearview mirrors and similarequipment where a universally mounted control element provides a mimiccontrol over the accessory element. More particularly, the presentinvention provides an actuator structure and an accessory structure,each related by interacting intermediate Bowden wire type controlswherein the core elements are maintained under a net compression duringall of the actuation.

Bowden wire type structures, wherein a sheathed core piece is slidablyretained in a concentric sheath are well known. The core pieces movelineally so that motion imparted at one end is extended to the other endin an equal increment. These structures provide means for resilientlyand frequently tortuously threading the control conduit through panelsand around obstructions so that motion imparted to the core at one endprovides corresponding movement in the other end which acts on theremote device to be controlled. As applied to automotive accessories,such as spotlights and rearview mirrors, such devices, under bothtension and compression, are known wherein the accessory is desired tobe universally movable when the accessory is located remotely from theactuator. The degree or amount of universal movement is limited by theamount of movement required in the particular accessory. Such acessorystructures, for example, are well appreciated by reference to my U.S.Letters Patent 2,931,245. The present invention, a continuation-in-partof my co-pending application, Serial Number 777,887, filed on December3, 1958, now US. Letters Patent 3,030,821, is directed to a simplifiedcompression type remote control arrangement wherein actuation isaccomplished under a system providing a net compression in the Bowdentype wire core elements. The structure of the actuator is greatlysimplified and modifications of the structure will be seen as applicableto plural wire systems utilized in a wide variety of use settings.

At least as early as 1958 it became apparent that any remote controlsystem utilizing Bowden wire structures must employ a continuousstressing of the elongate members intermediate the actuator or controlelement and the A -a ccessory to be controlled. The function of this netstressing considered at rest is to assure elimination of vibrationaletfect tending to displace a selected setting and to absorb lost motioninvolved in prior art structures in the alternate shifting, as betweenelongate elements, from tension to compression.

Accordingly, the present invention is directed to providing acompression type actuator and an accessory adapted to utilize thecompression system. It has been found that by utilizing compression inthe elongate members, in contrast to the more usually utilized tension,that considerable advantages in economy and construction, as well as ininstallation are realizable since the Bowden wire elements require noseparate clinching or securing to either the actuator or accessoryserved. Additionally, adjustments at one or both ends of the structurecan be accomplished upon assembly so as to render length factors in theindividual Bowden wire core pieces less critical.

Accordingly, great economies in the remote control units can be realizedand without sacrifice of precision adjustment. As will be appreciated,the application of the ice compression in the Bowden wire elements maybe rigidly applied or may be resiliently applied without departure fromthe spirit of the present invention.

The present invention has among its objects, the provision of a netcompression Bowden Wire remote control structure. In addition, thepresent invention is directed toward greatly simplified actuation andaccessory structure utilizing the net compression.

A further object is to provide a structure wherein the compressionapplying plates are movable toward and away from the terminal ends ofthe compression transmitting core piece.

Finally, the invention has as its object, an actuator and accesorystructure wherein the compression receptacles for each end of BowdenWire core elements require no attachment other than mere socketing so asto minimize costs, and simplify installation and maintenance factorswithout sacrifice in precision of performance. Collateral advantages inreduction or" unit complexity will be readily appreciated.

Other objects will be apparent to those skilled in the art as thedescription proceeds.

In the drawings:

FIGURE 1 is a schematic perspective view of a three rod compressionsystem for achieving an opposite and equal mimic control as between anactuator and a controlled element and wherein the rods illustrate therequisite rigidity for net compression actuation.

FIGURE 2 is an accessory shown, for example, as a rearview mirrorwherein flexible compression carrying members provide control whilebeing unattached, physically to the mirror element.

FIGURE 3 is an actuator unit in rear plan View serving a three wirecontrol system as viewed from behind a mounting or dash panel.

FIGURE 4 is a sectional elevation view taken on line IV-IV of FIGURE 3and indicating the stark simplicity of the actuator element applying netcompression to the Bowden Wire core pieces at the actuator end.

FIGURE 5 is a front elevation view of a modified mirror accessorywherein spring means are avoided at the accessory element.

FIGURE 6 is a side elevation partial section view of the structure ofFIGURE 5 indicating the use of a rigid compression applying elementoperative at the universal pivot.

General description In general, the present invention comprises a newand improved actuator capable of simple application of compressive forceto the terminal ends of plural Bowden wire core elements. The inventionalso comprises a combination of compression imparting actuator andcompression imparting accessory, the compression applied by each of theactuator and accessory elements serving to operably detent and locatethe application of the corresponding opposite ends of the core pieces inavoidance of physical attachment to either actuator or accessory.structurally, the actuator and accessory are arranged to press againsteach other through the connecting medium of the compression transmittingcore pieces. The automobile body or boat hull becomes a rigid fixtureseparating accessory from actuator. The compression is applied by eitherrigid or resilient means and hence the compression imparting plates aremerely provided with receptacles to detentably receive the terminal endsof the Bowden Wire core pieces. At each of the actuator and accessoryplates, the plates are made relatively movable toward and away from eachother thereby adjusting compression applied to the core pieces at theends thereof. This is accom plished by threaded means as will be seen.As the actuator is moved in these structures, corresponding and oppositemovement is imparted to the control element.

answers While generally the finest precision has been found in threewire systems, any plural wire control structure fusing Bowden wireconnecting means under c'dhip'fessiofi is included in the spirit of thepresent invention. Simple adjustment of compression is accomplished ateither the actuator or the accessory or both. Two wire systems are alsoaccommodated Where the counterforce of a spring bias, for example,si'tbstitutes for three Wire actuation.

Specific Decription elements and each locating in the respectivecorresponding receptacles or pockets, 13 and 13.; If the discs 12 and1?. are moved away from each other, the rods 14 would fall free. if,however, the rods 14 are tinder com.- pression hy application of axiallyapplied force from discs 12 and 12', then the system is secure andmovement of disc 12 by handle 11 Will cause corresponding and oppositemovement in disc 12 and handle 11 as shown in phantom line. While inthis movement there is an applifcation of imbalance to accomplishmotion, the net compression overrides the momentary alternate tensionand compression during movement so that no lost motion "occurs and sothat the motion is accordingly smooth and tight. A limited universalmovement in the handle 11 is seen to accomplish an equal and oppositeuniversal movement in the remote handle 11. The present inventionutilizes these simple considerations in providing a remote controlstructure for 'a variety of apparatus, modified by the utilization of acore wire instead of a rod wherein the core wire is capable of movementthrough a relatively short stroke without deformation While beingsulficiently resilient to be tortuously threaded through a non-directpath intermediate the actuator and accessory. This being true, an exactaction in the actuator element is reproduced by direct correspondingmotion in the remotely positioned accessory. In brief, the core piecesmust be sufficiently stiff to resist deformation by the compressionforces and through their unsupported lineal stroke sufliciently flexibleso that they may be bent about obstacles without destruction oftheefiective compression stroke. Accordingly, the analogy, by referenceto the rods 14, is

not intended to limit the core wire material to a solid bar,

or rod. At proper rigidity, stranded or cable type cores are also usablewhen properly sheathed and preferably tipped so as to avoid fraying ofthe terminal ends.

By reference to FIGURE 2 three Bowden wire core pieces 15, 16 and 17,each of them having sheath windings 18, 19 and 2-0, and consideredstressed by application of an equal compression are connectablypositioned to serve the accessory 21 illustrated as an automotiverearview mirror. The mirror glass or reflective element 22 is framed bya backing plate 23 located in an open ended mirror cover 24. The cover24 may be made a part of the entire housing 25, as shown, or mayconstitute 21 separate element as desired by the aesthetics or economyof a particular mirror structure. In FIGURE 2 the housing 25 and cover24 are integral.v V

The housing 25 is ordinarily secured to the hull of a boat or to thebody of an automobile, not shown. The housing 25 is provided with anaccess cavity 26 through which the sheathed core wire elements 15, 16and 17 are passed. A support web 27 is interposed transversely acrossone end of the cavity 26 and generally the web' 27 is parallel to andspaced from the normal accessory position shown. Normal position as usedherein has reference to a centering of the axis of movable element 23 asshownin accord aid-is corresponding centering of the aids Bf theactuator handle as seen in FIGURE 1'. The web 27 is provided with sheathreceiving sockets 2-8 which snugly receive the sheath elements 18, 19and 2d. Coaxial with the sockets 28 are openings 29, of reduced diameterthrough which the core elements 15, 16 and 17 are passed. In general,the class of fitpreferred is a running fit allowing the core pieces 15,16 and 17 to reciprocate axially therein.

The back piece orrnovable framing piece 23 of the reflective element 22is upset to provide pbckets intE which the free terminal ends of thedots wires 15,16 17 extend. The pockets 39 thus pibvide detent-likereceiving receptacles for the terminal ends of the core pieces 15, 16and 17. The pockets 30 are symmetrically arran ed to registably andtransversely intersect the projection of the core pieces 15, 16 and 17on the axes defined by the openings 29. A tension spring 31, locatedcentrally in respect to the pockets 30 is secured at one end to themovable niirfdr frame 23 'aiid at the other end tothe fixed housing 25.This is accomplished bythe integral loopSZ in frame 23 and by the pin 33provided transversely throughthe spring recess 34 in the web 27.

As iilustrated in FIGURE 2, the reflective element 22 along with itsframing 23 is thus urged into tight contact againstthe terminal ends ofthe core pieces 15, 15 and 17. The framing 23 is thus seen'suspended onthe tips of the core wire elements 15, 16 and 17 and the tips aresecured against lateral displacement by detent location in the pockets30. Where desirable, hardened cups (not shown) maybe used to extend thelife of the pockets 3!) or with flanges to form'the pockets 311. Axialmovement in the core pieces 15, 1d and 17 causes selected displacementof the movable frame 23. The sheath pieces 18, 19'and 29 are socketed inthe openings 28 of the web 27. Where desired, the sheaths may beclinched in position against any tensitin tendency to dislodge them fromposition.

As appreciated, this application of compression to the core pieces 15,16 and 17 requires countering application of force. In FIGURE 3 theactuator 35 of the present "invention is shown as secured in the panel36 of, for

example, an automobile dash or boat control pan l. The actuator 35, likethe web 27 in the accessory 21, is provided with a sheath receivingspider 37. The spider 37 is pierced transversely to provide a pluralityof sheath receiving receptacles 38 into which the ends of the sheathelements 18, 19 and 2d are inserted. Where desirable, these receptacles38 may be crimped inwardly to clinch the ends of the sheaths 18, 19 and21 These also provide shouldering for the terminal end of the sheathelements 18, 19 and 20. Smaller coaxial openings.39"provide a runningfit forthe core pieces 15, 16' and 17, better seen in FIGURE 4. Thecorepieces 15, 16 and 17 thus extend through the spider 37 and intoterminal engagement with a wobble plate 40 in normal spaced parallelrelation with the plane of the spider 37, as shown. Terminal andreceiving pockets 41 are provided in the wobble plate 40 in axialregister with the openings 29. The openings 29 provide bearing meansthrough which the core pieces 15, 16 and 17 extend. Upon assembly, theterminal ends of the compression transmitting core pieces 15, 16 and 17are thus detentably secured in the pockets 41 of the wobble plate 41).The wobble plate 40 thus selectively transmits motion to the core pieces15, 16 and 17 by axial displacement of the core pieces 15, 16 and 17while the pockets 40 restrain lateral displacement. The wobble plate 40is secured as by screw 42 or other suitable fastener to the center axisof a generally hemispheric element 43. A handle piece;44 axially extendsfrom the hemispheric element 43. An annular bearing plate 46 is providedhaving a central opening 45 therethrough and through which opening 45the handle piece 44 extends. The bearing plate 46 is adjustable axiallyof the opening 45 by relatively rigid means as for example by threads toforce I portion of the housing 61.

satis ed 5 the mating spherical female seat 45 at the opening in bearingplate 46 into firm engagement with the male spherical portion 43. Thisadjustment, when in the direction of the core elements 15, 16 and 17,pushes the wobble plate 46 into tight relation against the terminal endsof the core pieces 15, 16 and 17 thereby applying compression to thecore pieces 15, 16 and 17. As shown in FIG- URE 4 this adjustment isrelatively rigidly accomplished by use of a nipple 47 passed through theopening 48 in the dash panel 36. The nipple 47 thus provides a threadedcoupling for the spider 37 on one side of the panel 36 and also a commonthreaded coupling for the annular cover flange 49. As will be seen, thecover fiange 49 engages the peripheral fiange 50 of the bearing plate 46and is also threaded on the nipple 47 into flush engagement with thedash panel 36. Adjustment of these threaded relations on the nipple 47permits the bearing plate to be moved axially into greater and lesserengagement with the hemispheric surface 43, thus increasing ordecreasing compression applied to the core pieces 15, 16 and 17 by thewobble plate 49. The mating spherical surfaces 43 and 45 are thus seento comprise a limited universal structure which is adjustably positionedby the means described. As will be appreciated, resilience may bedesigned into the wobble plate 40 and into the bearing plate 4-6 byutilizing, for example, spring stock thus combining in structuralcomponents the function of springs usually a part of parallel type priorart devices. Prior elaborate use of die cast elements is thus avoided.

Referring to FIGURE 5 a modified accessory form is shown which ispreferred in usage with the actuator 35 of FIGURE 4. The principaldifference lies in the adjustable axis universal 51 so that as theactuator 35 may be used to apply a threaded adjustment of compression tothe core pieces 15, 16 and 17 by relative axial extension of theuniversal formed by surfaces 43 and 45, so the axial movement of theuniversal S1 imparts a pressure adjustment to the terminal ends of theelements 15, 16 md 17 at the accessory 52. By reference to FIGURE 6 thesimplicity of the accessory 52; will be appreciated. The reflectivemember 53 is framed, as in the structure of FIGURE 2 by a back and frame54. The back 54 is provided with pockets 70 for registrably receivingthe terminal ends of the compressed core pieces 15, 16 and 17. Atcenter, however, in contrast to the use of a tension spring 31, athreaded post 56 is provided. On the unthreaded end of the post 56 aspheroidal surface 57 is provided over which a mating spheroidal portion58 of the back 54 is positioned and against which the post 56 may pullso as to provide the limited universal 51 adjustable on the axis of thepost 56. The post 56 is threaded into the housing element 59. An accessopening 60 for movement of the post 56 is provided through the housingelement 59. The housing element 59 provides a web The housing element 59is thus positioned parallel to and spaced apart from the plane of thereflective member 53 when in'normal position as shown. The housingelement 59 is fitted into the "housing 61, is keyed thereto as by key 62in keyway 63 i which the sheathed core Wire elements 15, 16 and 17obtain access to the housing element 59. Sheath recesses 68 are providedtransversely and partially through the housing element 59 and receivethe ends of the sheaths 18, 19 and 20. Openings 69, of reduced diameterand on the common axis of the openings 68, extend through the housingelement 59 providing running fit bearings for the core wire pieces 15,16 and 17. The corepieces 15, 16 and 17 thus extend through the openings69 and axially extend therefrom into contact with the back framing 54.At contact with the back 54, pockets '76 registrably receive and confinethe terminal ends of the core pieces 15, 16 and 17 against lateraldisplacement. As previously indicated with respect to the pockets 3i and41, hardened cups may be used as liner inserts or form the pockets 70.As will be appreciated, the post 56 draws the baclr 54 into contact withthe ends of the Wire members 15, 16 and 17 providing an adjustable andrelatively rigid contact for application of compression to the corepiece elements. The sheath recesses 68 may be crimped to positively holdthe sheath elements 13, 19 and 21). As pointed out in respect to the web27 (FIGURE 2) and the spider 37 (FIGURE 4) the crimping is desirablewhere the compression applied to core pieces 15, 16 and 17 causes acorresponding tension in the sheaths 18, 19 and 20. Set screws may beemployed but cost is increased thereby.

While the reflective elements 22 and 53 have been generally illustratedas circular, it will be appreciated that the reflective members may beof other configuration, for example, oval or even rectangular. Thehousing elements for the reflective members may be greatly altered inaccord with aesthetic and design considerations. Field adjustment ofcompression is greatly facilitated by movement of the post 56 on itsmating thread or by lock nut type adjustment at the actuator 35 aspreviously described. In the FIGURE 2 structure, adjustment at theaccessory is resilient or non-rigid in accord with the range of tensionspring 31.

Operation In operation, in contrast to most prior art structures in thegeneral class, the actuator and accessory mounting may be substantiallycomplete before installation of the elongate core wire pieces in theirsheaths. Tiese may then be located and, Without securing to the actuatoror accessory, are suitably positioned, cut to size, then with theirsheaths socketed at each end, the terminal ends are socketed and theactuator and accessory are adjusted to apply a net compression.Deformation tendencies in the courses of wires and their sheaths arecontrolled by an overwrap sheath binding the courses together and bystapling or otherwise securing the bundle of wires at interv-als alongthe selected installation path. Sufiicient flexibility in the elongatewire cores and their Wrapper or sheath exists so that 8 to 10 inch radiibends are accomplished without serious interference with performance.Sharper bends through limited angles are possible.

Accordingly, great savings are experienced in the character of theterminal contact structures such as actuator and accessory elements.Assembly, disassembly and service is more easily accommodated and rigidadjustments at each end provide substantial improvements in theapplication of net compression to the core pieces. Lost motion iseliminated when proper net compression is applied and tensions in thesystem operate on the sheaths or sleeves of the core pieces. Consideringthe core pieces themselves, the compression type core using, forexample, a spiral wound outer wrapped sheath is very economical and incompression usage is more amenable to sizing and fitting than moreresilient materials for example, under tension, where elongation undertension becomes a considerable factor.

The life of structures in accord with the present invention is very goodand structures in accord with the invention have adequate stickingcharacteristics so that when an adjustment is accomplished vibrationaldislodgment is rare. Field adjustment is easy if some float is observed.

Accordingly, I have fully described one operative embodiment of thepresent invention and a modification indicating the adaptation of arelatively rigid compression bias at the accessory. Other embodiments,improvements, changes and modifications will occur to those skilled inthe .art upon a full appreciation of the present invention. Suchembodiments, improvements, changes and modifications within the spiritof the invention are intended to be included herein limited only by thescope of the hereinafter appended claims.

I claim: F

1. In a remote Control structure for rearview mirrors and the like, acompression actuator eompr'ising'i (a) a wobble plate;

(b) receptacles on said wobble plate;

(0) a spherical member extending from said wobble plate;

(d) a mating annular beaning plate, a part of said wobble plate engagedwith said .spherical member and completing a universal joint,

(2) a plurality of elongate compression transmitting members engaged attheir terminal ends in the receptables of said wobble plate; and r V (f)threaded means adjusting relative equal contact between said elongatecompression transmitting members and said wobble plate.

2. In a remote control structure for rearview mirrors and the like, anactuator comprising:

(a) a wobble plate;

(5) receptacles on said wobble plate comprising pockets; V r

(c) a hemispheric element securedto said wobble plate on an axistransverse to the surface of said plate;

(d) an annular hemispheric socket mating with said hemispheric elementand together with said hemi spheric element forming a universal joint;

(e) a handle through said socket secured to said hemispheric element;

(1) a plurality of compression receiving lineally movable core pieces,the terminal ends of which are compression engaged in said receptaclesagainst lateral displacement; and

('g') means urging said socket and said hemispheric element into snugbearing contact and said wobble plate into engagement with said terminalend of said cjir ieces. I,

3. In a re'rnbte control structure for net compression actuation ofrearview mirrors and the like, the combination comprising:

(a) an accessory element; a t I I (b) a back plate upon said. accessoryelement having receptacles therein; r

(c) an actuator element remote from said accessory element;

(d) a wobble plate having corresponding receptacles therein as in saidback plate;

(a) a plurality of elongate sheathed core wire elements intermediatesaid back plate and said wobble'plate the terminal ends of which areinserted in correspending of receptacles of said back plate and saidwobble plate; and

(f) means connected intermediate said actuator and said accessoryelement comprising said core wire elements against said back plate andsaid wobble plate.

4. In the combination set forth in claim 3 wherein the cans compressingsaid core elements is threaded.

5. In the combination set forth in claim 3 wherein the means compressingsaid core elements is resilient.

6. A remote control mimic structure of Bowden wire type wherein the corewire elements are maintained under ,a net compression, the combinationcomprising:

(a) an actuator member; I

(b) a universal structure in said actuator member;

(0) a. threaded means moving the relative position of said universalstructure;

(d) a wobble plate movable with said universal struc-.

(i) means urging said back plate into pressure engagement with theterminal ends of said core pieces.

7. In the combination set forth in claim 6 wherein the means urging saidback plate is an adjustable threaded means connected to said back plate.

8. In a remote control structure for rearview mirrors and the like, thecombination comprising:

(a) an actuator having a wobble plate, a universal socket supportingsaid wobble plate, threaded means moving said universal socket position,a handle for movement of said Wobble plate in said universal socket, anda spider defining plural openings there'- through in adjustable spacedoriented relation to said wobble plate;

(11) a plurality of sheathed elongate core wire members, one set of theends of which are oriented by said spider to contact with said wobbleplate, and the other ends of which transmit compression andrelativemovement in accord with selected positioning of said wobbleplate; and

(c) an accessory remotely positionable from said actuator comprising amember in compression contact with said other of said ends of saidelongate corewires, a sheath receiving and core Wire orienting web inspaced generally parallel relation to said accessory member and throughwhich said core wires pass, and means urging said accessory member intocompression contact with said terminal ends of said core wire members.

9. In the combination of claim 8 wherein said means urging said movablemember into contact with said terminal ends of said core wires areresilient.

10. In the combination of claim 8 wherein said means surging saidmovable member into contact with said terminal ends of said core piecesis rigid.

ll. In the combination of claim 8 wherein said wobble plate in saidactuator and said movable member in said accessory are provided withpockets confining said ends of said core wire'pieces from lateraldisplacement.

12. A remote control structure for rearview mirrors and the likecomprising:

(a) a wobble plate having a plurality of radially disposed receptaclesand central journal means;

(b) a back plate remote from said wobble plate having a plurality ofradially disposed receptacles and central journal means;

(0) a pair of hemispheric bearings, one disposed against said centraljournal means of said wobble plate and the other disposed against saidcentral journal means of said wobble plate whereby said back plate andSaid Wbb1e Plat PE? r lsl sd mau universa ly.

(d) a plurality of resilient sheathed core elements interposed betweensaid wobble plate and said back plate, each of the ends of each of saidcore elements, respectively, engaged in said receptacles in said wobbleplate .and said back plate and compressibly securing said plates snuglyagainst said bearings whereby movement in one of said plates results incorresponding movement in the other of said plates.

13. A compression type remote control for rearview mirrors and the likecomprising:

(a) a wobble plate having a plurality of receptacles radially arrangedabout a center;

(b) a hemispheric bearing against which said wobble plate bears atcenter of said wobble plate; I

(c) a back plate remote from said wobble plate and having a plurality ofreceptacles radially arranged about a center;

(d) a second hemispheric bearing against WhlCh said back plate bears atcenter of said back plate;

,(e) a plurality of elongate sheathed core wires each of said core wiresengaged at their respective ends in said receptacles of said wobbleplate and said receptacles of said back plate; and

(7) means urging said back plate and said wobble plate against said endsof said core wires thereby equally compressing said core wires andurging said back plate and said Wobble plate securely against saidhemispheric bearings whereby said core Wires are subjected to an equalcompression at all times and wherein movement of one of said platescauses equal corresponding movement in the other of said plates.

References Cited by the Examiner UNITED STATES PATENTS 2,614,437 10/52Meggitt 74-501 2,656,764 10/53 Johnson 88-93 3,013,392 12/61 Falge etal. 88-93 X 3,046,841 7/62 Kawecki 74-501 X BROUGHTON G. DURHAM, PrimaryExaminer.

UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTIQN Patent No.3,185,736 May 18, 1965 Edwin Be Jacobson It is hereby certified thaterror appears in the above numbered patent requiring correction and thatthe said Letters Patent should read as corrected below.

Column 7, line 35, for "end" read ends line 49, after "of", firstoccurrence, insert said same column 7, line 52, for "comprising" readcompressing -n Signed and sealed this 12th day of October 1965.

(SEAL) Altest:

EDWARD J. BRENNER ERNEST W. SWIDER Commissioner of Patents AttestingOfficer

1. IN A REMOTE CONTROL STRUCTURE FOR REARVIEW MIRRORS AND THE LIKE, ACOMPRESSION ACTUATOR COMPRISING: (A) A WOBBLE PLATE; (B) RECEPTACLES ONSAID WOBBLE PLATE; (C) A SPHERICAL MEMBER EXTENDING FROM SAID WOBBLEPLATE; (D) A MATING ANNULAR BEARING PLATE, A PART OF SAID WOBBLE PLATEENGAGED WITH SAID SPHERICAL MEMBER AND COMPLETING A UNIVERSAL JOINT, (E)A PLURALITY OF ELONGATE COMPRESSION TRANSMITTING MEMBERS ENGAGED ATTHEIR TERMINAL ENDS IN THE RECEPTACLES OF SAID WOBBLE PLATE; AND